A grass fire apparently ignited by a passing vehicle ripped across an estimated 38,400 acres of rural Washington County late Monday, destroying 11 structures near Last Chance. Firefighters were able to contain 95 percent of the fire.

In a matter of hours, it became the fourth-largest wildfire in Colorado history.

At least four of the structures that were leveled were homes, according to Angel Earl, who was acting as spokeswoman for the northeast Colorado agencies dealing with the fire.

The blaze was thought to have been ignited by a passing vehicle that got a flat tire and, in turn, threw off sparks after the blowout.

Shortly before 10 p.m., the fire was reported as 50 percent contained, with efforts aimed at saving the Woodlin School northeast of Last Chance.

U.S. 36 was closed from Byers to Last Chance, and Colorado 71 was shut down from Brush to Limon by the blaze.

Utility lines were down across both highways.

One large air tanker and one single-engine air tanker were used to attack the fire. By mid-evening, an estimated 110 people were fighting to stop the blaze’s march.

The fire spread quickly after initially being reported at roughly 1,500 acres.

Residents in the area of Last Chance and Woodrow were ordered to evacuate as the flames spread. The American Red Cross set up an emergency shelter at Akron High School.

Nine of the structures that were devoured by the flames were in Last Chance itself — a tiny town at the intersection of highways 36 and 71.

Power was out in the southern half of Washington County.

“I left a lot behind, but I got me and my grandkids out, and that’s all that matters,” Sharon Chenoweth told 9News.

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